Police make arrest in Belmont Street apartment murder

Police make arrest in Belmont Street apartment murder »Play Video

SEATTLE -- The U.S. Marshal's Washington Fugitive Task Force charged a 39-year-old convicted sex offender with murder in connection to the death of a Southeast Portland woman.

Mark Daniel Beebout was arrested Thursday without incident at North 45th and Burke Avenue North in Seattle.

He is also charged with first-degree theft, tampering with physical evidence, felony fraudulent use of a credit card and unauthorized use of a vehicle.

The charges stem from an investigation that started just before 2 p.m. July 10 when police were called to an apartment in the 1400 block of Southeast Belmont Street after a dead woman was found in the apartment.

The woman was identified in court documents as Nikayla Powell, 32. In front of Powell's apartment sits a lone flower to honor the woman. Powell's father shared a collage with KATU -- with pictures of her from when she was a little girl through her teenage years when she was known as Laura Troyan when she decided to change her name after a five-year marriage in Eugene. He wrote, "Niki left this world, but I know in my heart she will continue working to fulfill her fondest dreams."

Police believe Beebout killed Powell then stole her dog, car, debit card and Oregon Trail card before he used them to buy more than $1,000 worth of merchandise since her death. Neighbors said they saw Beebout coming and going from Powell's apartment in the weeks before her death. How he met Powell is still uncertain, as is what led to the killing.

The day after Powell's body was discovered, the Oregon State Medical Examiner determined she had died of homicidal violence.

During the investigation, detectives said they learned Powell and Beebout knew each other and that her car and dog were missing. When Beebout was arrested Thursday, he had Powell's dog -- a German Shepherd/Wolf mix -- with him.

Powell's car is still missing. It is a red 1999 Subaru Legacy with Oregon license plate 8-5-9-B-J-Q. Detectives said they need the public's help to find the car. 

Beebout was booked into the King County Jail in Washington and will await extradition to Oregon.

He was convicted as a sex offender in California 17 years ago and was convicted in March of failing to register in Oregon as a sex offender.

Anyone with additional information should call Detective Kristina Coffey at 503-823-0696 or email her.